New Fendt 939 Vario Tractor with SCR Technology

Fendt launched their new 900 Vario SCR tractor range recently in Germany.

“With the new range comes a new flagship model, and the firm has launched the 390hp 939 Vario Fendt. According to Fendt, it has a market share of more than 30pc in the 250hp+ bracket across Europe.

Fendt has used Deutz engines for quite a few years now and this has not changed — all models in the new generation 900 Vario SCR range are all powered by a new six-cylinder, 7.8-litre capacity Deutz engine with SCR.

The new engine has a larger bore and longer stroke, increasing capacity to 7.8 litres. The common rail fuel injection pressure has also been increased to 2,000 bar and the engines are equipped with a new turbocharger with electronically controlled waste gate. There is also a new cooler and heat exchanger system for the transmission and hydraulic oil.

SCR exhaust treatment technology uses a second liquid, AdBlue, to treat the exhaust gases and convert the harmful NOx content into nitrogen and water.

According to Fendt’s marketing director, Roland Schmidt, “there are a number of advantages to using SCR technology. But the primary reason is that it reduces fuel consumption by allowing the engine to be set for optimum combustion. Unlike EGR, using SCR creates less exhaust gas back pressure and does not consume fuel for filter recuperation. It also calls for significantly reduced cooling capacity.”

The firm claims that fuel tests show a saving of about 7pc in fuel. ” Source: Big machines lead way in switch to smaller emissions – Farming, Frontpage – Independent.ie

Watch the video we shared in an earlier post about the Fendt 939 Vario and tell us why you like SCR over EGR.